
He improved our game in areas where it had to be improved. First of all in half a year time he made Juve one of the best counter attacking teams while before we were easily the worst 'top team' when it came to counter attacking. Huge improvement in this case. We play better from the back too, more calm and precise when pressed (it has to be improved even more though).
This team actually lets you dream in all honesty. Allegri brought back the tactical flexibility that Conte abandoned but also prepared us to playing different styles depending on who we face. It's obvious Conte has done fantastic job, we were good at possession football even before Allegri came but the latter added the new weapons to our arsenal. Allegri's job is also noticeable in psychological aspect, especially in Europe. We're not defeatists in Europe anymore even if we're still a bit fragile. We don't play like machines anymore but more freely which is very good, especially in Europe (once again

).
So far Allegri has done a fantastic job and he keeps proving me wrong. I was against hiring him and I saw him as a disaster replacement for Conte.